Marty Green

819 reputation

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bio	website	marty-green.blogspot.com
	location	Canada
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visits	member for	2 years, 1 month
	seen	5 hours ago
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	819 reputation	bio	website	marty-green.blogspot.com	visits	member for	2 years, 1 month
310 badges		location	Canada		seen	5 hours ago

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Mar 14	comment	Energy Measurements in a Two Fermion Double Well System It's hard for me to understand how your other correspondents could have given such detailed answers without explicitly taking note of this condition.
Mar 13	answered	Energy Measurements in a Two Fermion Double Well System
Mar 13	answered	Factors affecting torque and RPM of a motor
Mar 12	answered	Evidence that “space exists rather than just particles”
Feb 27	comment	Why was PACER abandoned? maybe so but I still think I was right about the 2 billion.
Feb 27	comment	Why was PACER abandoned? So is our dollar, for that matter.
Feb 27	comment	Why was PACER abandoned? You're neglecting the fact that I live in Canada, and our gallon is different.
Feb 26	answered	Why was PACER abandoned?
Feb 11	comment	Is there a physics Puzzles site like Project Euler? Those problems seem to have ended back in 2004. Are they still posting new ones somewhere?
Feb 3	comment	Vibrational motion of linear diatomic molecule I think for similar reasons the non-adjacent transitions in CO are also not excited. There is no dipole moment coupling the ground state to the third excited state, or the fourth state to the eleventh.
Feb 3	comment	Can the Lorentz force expression be derived from Maxwell's equations? Thanks, Greg. I had an extra backslash at the end. It's OK now.
Feb 3	revised	Can the Lorentz force expression be derived from Maxwell's equations? deleted 1 characters in body
Feb 3	answered	Can the Lorentz force expression be derived from Maxwell's equations?
Feb 2	comment	What is a strain gauge and how do I use one? dmckee, I con't object to your writing whatever you want to write, but I've read it again, and like I said the first time, it still seems pointelssly hostile to the point of being bizarre. The conversion between microstrain and microvolts is no accident, and I don't remember at which excitation it becomes exact, but my point was that you're not going to get anything useful out of a wheatstone bridge with a $29 multimeter. I don't think that's fiddly stuff to keep the students busy, whatever that's supposed to mean.
Feb 1	comment	What is a strain gauge and how do I use one? I find dmckee's comments to be pointlessly hostile to the point of being bizarre. The question asked how do you use strain gauges. I explained how to wire them up in a wheatstone bridge, and pointed out the need for a voltmeter that goes to five digits. What exactly is fiddly about that?
Feb 1	answered	What is a strain gauge and how do I use one?
Jan 28	comment	Reflectance of Round Moon vs Flat Moon Oh, it's not just you. People do it all the time; I just like to keep a record. Did we cross paths in physicsforums.com? I used to be "conway".
Jan 28	comment	Reflectance of Round Moon vs Flat Moon It's a small point, but when I edit a one of my answers I like to leave the wrong answer there and and the corrections under the title "EDIT:". I think the conversation makes more sense that way. But in any case thanks for working it out!
Jan 28	accepted	Reflectance of Round Moon vs Flat Moon
Jan 27	comment	Reflectance of Round Moon vs Flat Moon Reason? Not really. I just normally assume I'm going to do something wrong when things get complicated.